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$457+ Cheap flights from Porto (OPO) to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Porto to Las Vegas

Best flights from Porto to Las Vegas
Discover carefully curated flight deals from Porto to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This Billigflug deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:20 amOPO - LAS
2 stops22h 14mMultiple Airlines
Sat 1/3110:55 amLAS - OPO
2 stops16h 50mMultiple Airlines
Deal found 12/24$755
This British Airways deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:20 amOPO - LAS
2 stops21h 39mBritish Airways
Sat 1/311:48 pmLAS - OPO
2 stops21h 27mBritish Airways
Deal found 12/25$757
This American Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/168:20 amOPO - LAS
2 stops33h 51mAmerican Airlines
Tue 1/208:10 amLAS - OPO
2 stops19h 35mAmerican Airlines
Deal found 12/24$774
This KLM deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 pmOPO - LAS
1 stop31h 35mKLM
Wed 5/135:50 pmLAS - OPO
1 stop20h 10mKLM
Deal found 12/26$809
This American Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/58:20 amOPO - LAS
2 stops21h 43mAmerican Airlines
Sat 2/216:00 amLAS - OPO
2 stops21h 45mAmerican Airlines
Deal found 12/25$774
This Mytrip deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:00 amOPO - LAS
2 stops23h 02mMultiple Airlines
Sat 2/217:00 amLAS - OPO
3 stops31h 45mMultiple Airlines
Deal found 12/25$774
This British Airways deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/225:35 pmOPO - LAS
1 stop33h 15mBritish Airways
Thu 2/511:57 amLAS - OPO
2 stops21h 18mBritish Airways
Deal found 12/24$804
This American Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:20 amOPO - LAS
2 stops31h 40mAmerican Airlines
Mon 1/1910:55 amLAS - OPO
2 stops40h 50mAmerican Airlines
Deal found 12/23$774
This Mytrip deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/225:00 amOPO - LAS
2 stops20h 50mMultiple Airlines
Thu 2/57:35 pmLAS - OPO
2 stops31h 25mMultiple Airlines
Deal found 12/25$781
This British Airways deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:35 pmOPO - LAS
1 stop33h 15mBritish Airways
Sat 2/2111:16 amLAS - OPO
2 stops23h 59mBritish Airways
Deal found 12/25$804

Find flight deals from Porto to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$755
(Billigflug)

One-way from

$457
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$919
Provider with most accurate pricing for Porto-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Las Vegas Harry Reid Intl flights.
Search Deals
From Porto to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Porto to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from Porto to Las Vegas that are best for you.

Fly from

Porto

Fly to

Las Vegas

Route

Depart

Return

Price

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/15

8:20 am-10:34 pm

2 stops22h 14m

Las Vegas Harry Reid Intl

Sat 1/31

10:55 am-11:45 am

2 stops16h 50m

$755

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/15

8:20 am-9:59 pm

2 stops21h 39m

Las Vegas Harry Reid Intl

Sat 1/31

1:48 pm-7:15 pm

2 stops21h 27m

$757

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 1/16

8:20 am-10:11 am

2 stops33h 51m

Las Vegas Harry Reid Intl

Tue 1/20

8:10 am-11:45 am

2 stops19h 35m

$774

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 2/5

8:20 am-10:03 pm

2 stops21h 43m

Las Vegas Harry Reid Intl

Sat 2/21

6:00 am-11:45 am

2 stops21h 45m

$774

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 2/5

7:00 am-10:02 pm

2 stops23h 02m

Las Vegas Harry Reid Intl

Sat 2/21

7:00 am-10:45 pm

3 stops31h 45m

$774

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/15

8:20 am-8:00 am

2 stops31h 40m

Las Vegas Harry Reid Intl

Mon 1/19

10:55 am-11:45 am

2 stops40h 50m

$774

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/22

5:00 am-5:50 pm

2 stops20h 50m

Las Vegas Harry Reid Intl

Thu 2/5

7:35 pm-11:00 am

2 stops31h 25m

$781

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/22

5:35 pm-6:50 pm

1 stop33h 15m

Las Vegas Harry Reid Intl

Thu 2/5

11:57 am-5:15 pm

2 stops21h 18m

$804

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 2/5

5:35 pm-6:50 pm

1 stop33h 15m

Las Vegas Harry Reid Intl

Sat 2/21

11:16 am-7:15 pm

2 stops23h 59m

$804

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

7:00 pm-6:35 pm

1 stop31h 35m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-10:00 pm

1 stop20h 10m

$809

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 11 results
1
2

Compare providers for flights from Porto to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Las Vegas in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-Las Vegas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-Las Vegas flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Las Vegas flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to Las Vegas

What is the cheapest month to book a flight from Porto to Las Vegas?

Currently, February is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $513). Flying from Porto to Las Vegas in January is currently the most expensive (average of $881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Porto to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto to Las Vegas?

    Airlines like British Airways and American Airlines fly from Porto to Las Vegas in about 21h 39m. The time it takes to get you to your destination can typically vary by up to 12h 12m. There are 5352 mi between Porto and Las Vegas. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Porto to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Porto to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Las Vegas.

  • Can I find deals for business class flights from Porto to Las Vegas?

    Yes. Cheapflights offers flight deals from Porto to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to Las Vegas?

    Currently, February is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $513). Flying from Porto to Las Vegas in January is currently the most expensive (average of $881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
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